Duborg Skolen in Flensburg

A new building in an existing building

Facts and figures

Client:

Böller - Bahnemann Architekten GbR, Rendsburg

Object:

Extension and conversion of the listed building stock of the Duborg Skolen in Flensburg

Design:

Praksis Arkitekter APS, DK Svendborg and Böller - Bahnemann Architekten GbR, Rendsburg

Services:

Structural design

Building physics

Structural engineering, SiGeKo

Special features:

Sports hall:

During ongoing school operations, cantilevered superstructure of the existing sports hall (38x20x11 m, NF 2,124 m²) as the basis for the upper floor with 4 specialist classrooms
Reinforcement of the existing load-bearing systems and installation of a 20-meter spanning steel structure
Mounting the ceiling without support in the construction stage
Reinforcement of the existing foundation using the jet grouting method (HDI)

Kjær-Richter (4 storeys, NF 5,960 m²) and Dall building (5 storeys, NF 4,437 m²):

Construction of a cantilevered connecting corridor between the sports hall extension and the main building
Conversion of the break hall with gallery for flexible use of the premises as an event venue
Deep foundations for various staircases and elevator systems within the building